Hypernym

noun

any substance that causes injury or illness or death of a living organism

Substance_meronym

hydrogen 1

noun

a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

selenium 1

noun

a toxic nonmetallic element related to sulfur and tellurium; occurs in several allotropic forms; a stable grey metallike allotrope conducts electricity better in the light than in the dark and is used in photocells; occurs in sulfide ores (as pyrite)

hydrogen selenide 1

noundomain: substance

EnWordnet [ver.5.0]

English

Definition

an inorganic compound with the formula H2Se.

Examples

1.Hydrogen selenide is hazardous, being the most toxic selenium compound and far more toxic than its congener hydrogen sulfide.

Substance_holonym

hydrogen 1

noun

a nonmetallic univalent element that is normally a colorless and odorless highly flammable diatomic gas; the simplest and lightest and most abundant element in the universe

selenium 1

noun

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